First up, a new post after a long hiatus at Statistically Funny: Clinical Trials - More Blinding, Less Worry! It's a big topic - and there are so many different ways that bias could creep through the cracks here, that it's worth re-visiting the basics.

With that post, I now had enough background to tackle Clinical Trial Critique 101 at Absolutely Maybe. A recent trial on yoga and depression was a good example to work with there.

Then August was all about the HPV vaccine. A scathing critique of the Cochrane Collaboration's systematic review and meta-analysis got a lot of attention. It shocked me until I dug deeper and discovered how implausible - and sometimes just plain wrong - this critique was. More at Absolutely Maybe - The HPV Vaccine: A Critique of a Critique of a Meta-Analysis.